Type-writing machine.



A. G. F. KUROWSKI. TYPE WRITING MACHINE. APPLICATION rum) APB. 2a, 1912.

1,121,638, Patented Dec. 22, 1914.

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INVENTOR:

ATTORNEY FIG. 2

UNITED STATES PATENT OFFICE.

ALFRED G. F. KUROWSKI, 0F BROOKLYN, NEW YORK. ASSIGNOR TO UNDERWOOI? TYPEWRITER. COMPANY, OF NEW .YDRK. N. Y.. A CORPORATION OF DELAWARE.

TYPE-WRITING IJIA OH INE.

Specification of Letters Patent.

Patented Dec. 22, 1914.

Application filed April 26. 1912. Serial No. 693.281.

To all ti /1 7M it may com-02 11 Be it known that I. Anrnnn t F. KUuowsKI. a citizen of the United States. residing in Brooklyn borough. in the county of Kings and State of New York. have invented certain new and useful Improve ments in 'lypc-ll'ritiug illachincs. of which the following is a SPtLlllPiltlUl].

This invention relates to means for enflbllllfl worksheets. especially when small. such as labels, to be easily and securely held in position to be written on. and is p::r ticularly adapted to control such when they are stitF or when it is desired to write on the very margin. I

As herein diseh'ised. the work-pieces are arranged to be held against the platen by a belt which extends from a lixed framework on the carriage down toward the platen. Said belt preferalilr terminates within the platen and is arranged to be kept under :1 continual tension. as the platen may turn. Preferably. the belt is a resilient metal strip. one end of which rolled and is fast on the framework. This coil may be gradually pulled out as the platen is turned in feeding the n'ork-picee. The end of the bell; in the platen tantra-ably terminates in a hook portion. entering a radial slot in the platen. so that the belt. will not jar out of place during the writing.

Other features and advantages will hereinafter appear.

In the accompanying drawings. Figure 1 represents a front yicw of so much of the carriage of an Umlerwood typewriting ma chine as is necessary to show my imcntion. Fig. 2 is an end View of the same partly in section. Fig. 3 is a section of :1 part showing the .eoils ot the resilient belt. l ig's. and a are fragmentafir views respectively of the supporting bar for the belt coils. and a bracket to which said bar is attached.

A platen 1 i is mounted on a shaft :2 pnlrnaled in end pieces 5 and l of :1 platen frame. A work-sheet 5 may be held against,

said platen 1 by means of belts ti. These belts, which engage the platen by means of hooks or bent portions 7. extend from :1 cross-bar of a fraud-work fixed on said platen frame forward to the platen normally on a tangent thereto. near the prion ingline.

The workshwt 5 may be inserted in front of the platen with its margins behind these belts. so that its lower edge contacts with the bent portions of said belts, and is thereby alined. The platen is then turned and adnusted until the desired place on the card is brought opposite the printing point" whereupon the operator proceeds as usual. :1 line spacing mechanism. not shown, being supplied. The feed may be ellceted by turning thehand wheel 9. if tlCsll'CtLtllltl the line spacing mechanism dispensed with. By providing for the insertion of the card at the front. of the machine the card is always in sight of the operator. and with a little practice the operator becomes very dexterous and sure in inserting the cards and turning the platen to the right extent. In many instances it is not necessary to insert the card tarthe printing" point being toward the bottom of the card. The upper part of the card (see Fig. :2) does not then become bent and the straightening or [lotteningof the cards is prompt and easy since the card is not carried around the platen. Another thine that helps in this connection is carrying the belt from the face of the platen upward in a line practically tangent to the face of the platen near the printing point. The card is thus in contact with the platen to the least degree of arc practicable. The platen may be arrested at the proper point for inserting" the paper, by means of :1 stop 10. which cooperates with a. stop 11 on the end piece 4: and those stops will prerent the platen from being turned more than :1 full revolution. thus making it impossible to unduly wind up the. belts 6.

Each belt (5 comprises a coi portion 15 lying within a barrel H, which coil is arranged to be drawn out as the platen is rotated l tltl\'\\:ll'(ll V. and the end of each coil is fast to a pin it" in its barrel. so that when the platen is turned forwardly. the coil which is tensioned and set. will tend to pull bark the straight partof the belt with the returning' platen. Thus constructed the coiled. end of each belt acts as even and uniform tension and the belt as 11 whole. is resilient and sclf-tensionjng and the tension efi'ect is uniform practically throughout the turning of the platen. The spring and belt being all one. moreover, all but two fastcnings are dispensed with. and tbeseare simple and positire so that there is nothing to get out of order, become detached, or rattle and jar the machine.

spring of- The cross-bar 8, by which the free ends of the belts are supported, comprises a spline 12. in which a key 13 in a barrel 14 slides, and holds said barrel against rotation.

The cross-bar S is prevented from turning by means of a tongue 17, which enters a tlahsideu opening 18 in one of the supporting arms 19. rising from the end pieces 3 and l of the platen Frame. As the belt carrying nn-nibers slide across the cross-bar S to adjust the belts ti to any desired worksheet. the lhmli ends 7 of the belts slide in a slot 21 in a metal insert 3:2 in the platen. The belt carrying.niembers ll may be set on cross-bar S at any desi red position by means of set screws 20 in .the hubs thereof.

Variations may be resorted within the scope of the ntention, and portions of the improvements ma be used without others.

llaring thus described my invention, 1 claim:

1. In a typewriting machine, the combination of a rotatable platen, and a metallic sclf-tensioning band attached to said platen and arranged to hug a work-sheet against the platen '3. In a trpewriting machine, the combination of a rotatable platen, and a metallic hand attached to said platen and adapted to hold a work-sheet against said platen, said band having an integral extension foiming resilient means for maintaining tension on said band.

3. in a typewriting machine, the combination with a rotatable platen. and a platen frame in which it is journaled, of means for slidably attaching a band to said platen for adjustment longitudinally of the platen, a framework on said frame, a fixed member on said framework on which a hand holding member is slid-ably mounted, and a band extending from said holding member to said platen.

l. in a t \'pc\\'riting machine, the combination with a rotatable platen, and a platen frame in which it is journaled, of means for elltl lliii attach ng a band to said platen, a t'ranwa'ork on said frame, a fixed member on sa d trainexiorh on which a hand holding member is :ilidabl mounted. a band extending from :Ml Hl holding member to said platen and arranged 1.1 tend to rotate the platen, and a stop for arresting raid platen.

I. in a l rpeu'riting machine, the combination with a rotatable platen, and a platen frame in i' lllt'll it is journaled, of a resilient metal band adapted to hold a. nork-shed against. said platen. said band comprising a rpira l roiled portion which is fast to a. lixed member on said frame. and which t'orms a resilient means to maintain tension on tin band.

i', la a typewritiug machine, the combination with a rotatable platen and a platen frame in which it is journaled, of a framework on said frame, a cross-bar on said framework, a belt holder splined to slide on said shaft, a resilient belt comprising a coiled portion arranged within said holder and a reach extending to said platen, and means on said platen to hold said belt.

T. In a typewriting machine, the combi nation with a rotatable platen, and a laten frame in which it is journaled, of a l i'amework on said frame extending the length of the platen, a belt holder splined to slide on said framework substantially the length of the platen, a resilient belt extending from said holder to the platen, and means to attach said belt to the platen.

8. In a typewriting machine, the combination with a rotatable platen and a platen frame in which it is journaled, of means for attaching a band to said platen, a framework on said frame. and a band attached to said platen and having an integral resilient extension connected to the framework tending to coil and thereby maintaining tension on the band.

9. In a typewriting machine, the combination of a rotatable platen, bands attached thereto and adapted to hold a work-sheet against the platen, and means forming a part of each band for independently maintaining tension on said bands.

to. in a typewriting machine. the ombi' nation of a rotatable platen, resilient bands attachable to the platen and adjustable longitudinaltr thereof, and means for holding the bands in adjusted position tending to coil.

11. In a typewriting machine, the combination of a rotatable platen, bands attachable thereto and adapted to hold a worksheet against the platen, said bands being adjustable longitudinally of the platen and extending in a straight line from the platen, and means for adjustably supporting the extended portions of the bands.

1'2. In a typewriting machine. the combination of a rotary platen, resilient selftensioning non-extensible bands attachable at one end thereto and relatively adjustable in the direction of the platen axis, and means for supporting the other ends of said bands above the platen.

iii. in a front-strike typewriting machine, the combination of a rotary platen, a nonextensible work-holding resilient self-tensiouing band. extending upward from the platen, and adapted to turn the platen. and means above the platen for supporting the upper end of the band.

ll. in a typewriting machine. the combination ot a rotary platen, a sclttensionlug non-extensible \\'orli-holding band attached at one end to the platen and not; mally extending across the printing line and at a tangent to the platen at a point adjacent the printing line, and means to support the extended portion of the said band.

15. In a typewriting machine, the combination of a rotary platen, of resilient self-tensioning nonextensible WOI'l'IlIOlCllXIg bands connected thereto and extending in a direction to permit work-pieces-i to be fed between said band and the periphery of the platen, the tension and resiliency of the bands tending to rotate the platen in a forward direction. 1

16. In a typewriting machine, the combination of a rotary platen, cooperating stops to limit the rotation of the platen in both directions, resilient Work-holding hands each attached at one end to. the periphery of the platen and extending in a line from the platen, and locking means for supporting the other ends of said bands and maintaining the bands under tension.

17. ln a typewriting machine, the combination oi a rotary platen, stops to limit the rotatipn of the platen in either direction, and resilient work-holding bands conllit'ttil to theperipheralsnrfaceoitheplaten substantially at the printing line when the platen is at the limit oi its rotation in one direction, said bands extending sill)- stantialiy at a tangent to the platen from the point of connection when the platen is in such position.

ls. In a typewriting machine, the com;

bination of a rotary platen, a strip of resilient sheet metal having a portion wound and set to form a coil spring and an extended straight portion, said straight portion being connected to the platen and forming a \roi-leholding band, and a support for said coil spring.

19. In a typewriting machine, the combination of a rotary platen, a strip of elastie sheet metal having a portion wound and set to form a coil spring and an extended straight portion, said straight portion being connected to the platen and forming a Workholding band, and a support for said coil spring on which the latter is adjustable in the direction of the platen axis, said connection between the platen and band also permitting adjustment of the latter along the platen.

20. In a typewriting machine, the combination with a rotary platen and a platen frame, of a framework mounted on said frame and comprising a bar parallel with the platen, barrels adjustable along said bar, springs mounted on said bar in said barrels, bands extending from said springs to the platen, said bands being continuations ot' the springs and means for adjnstably connecting said hands to the platen.

ALFRIPD (i. F. KUROVVSKI.

Witnesses G. RIILEY, Gannon E. LlIGWING. 

